Figure 11From: Cytotoxicity and cellular uptake of tri-block copolymer nanoparticles with different size and surface characteristics Comparison of uptake of different PNP 45 [[4]] and PNP 90 in NR8383 and Caco-2 cells (1 μg/ml) upon 24 h exposure after blocking the clathrin (A) and caveolin (B) receptors (n = 5). The * sign signifies p < 0.05 when compared to unperturbed uptake.Back to article page